Add four RS232 and four RS422/485 serial ports to your standard or low profile system through a PCIe slot - The PEX8S232485 8-Port PCIe Serial Combo Card lets you add four RS232 and four RS422 / RS485 serial ports to your PC through a single PCI Express expansion slot. This multi-port serial card is a single card solution that offers compatibility with nearly any serial communication protocol, supporting RS-232, RS-422, RS-485 2-wire or RS-485 4-wire operating modes at data rates up to 460Kbps. To fit most standard computer cases, the card ships with a standard profile bracket installed and includes a low-profile / half-height bracket for adapting to slimline or small form factor systems. Plus, the included breakout cable helps to avoid cluttered connections. Backed by a StarTech.com lifetime warranty and free lifetime technical support.

• Communicate with multiple devices over mixed protocols with RS232, RS422 and RS485 compatibility
• Fit almost any PC case with included low and full profile brackets
• Avoid crowded connections with the included breakout cable
• 8 port (4 x RS232, 4 x RS422/485) serial combo card
• RS232 data transfer rates up to 460 Kbps
• Supports 2-Wire / 4-Wire RS485 modes
• 256-byte deep FIFO per transmitter and receiver
• Standard profile bracket installed, low profile bracket included